So I got a new ebike to work on, but there's a downside. I can't find the controller's wiring diagram anywhere onllne. I originally found the bike online called "MacWheel Ranger". This one looks to be a 350w model. I can't find what wires go where. I got this bike 4 days ago and i've been spending some time working on it, adding basic parts on it here n there. The bike shop that gave it to me told me the bike got into a wreck, so they had it dismantled. Luckily it came with it's battery and it still work as well! I got the wheel, frame, and well, the battery as well. After investigating and finding the controller hidden behind the battery's bottom mount, It looks to be a decent controller. But there's ANOTHER downside. The main wire's been cut! I can't determine what wire goes where! Basically this is a waterproof controller, but the bike shop cut the main wire that splits off to the controller, throttle, brakes, and likely the headlight(seeing as how this bike had a headlight, but it's not there.) But the good news is that it was just a extension. Here's a few photos I was able to take of it at least. But I do know the display is a KD21C. But the end of it is a weird oval connection and not a circular connection which is really annoying me. So any help would be needed! All i'm looking for is the wiring diagram as to what goes where, where can I find a part that has a oval connection, or i'll have to cut the controller's end and just wire it up to the beheaded main controller wire. I don't know exactly where that pink wire goes except it just has a extenstion for that one only, and a yellow port that doesn't really go anywhere. But I know one of the connections goes directly to the motor, so there's that benefit.